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Graphite-protected CsPbBr3 perovskite photoanodes functionalised with water oxidation catalyst for oxygen evolution in water

Isabella Poli, Ulrich Hintermair, Miriam Regue, Santosh Kumar, Emma V. Sackville, Jenny Baker Orcid Logo, Trystan Watson Orcid Logo, Salvador Eslava, Petra J. Cameron

Nature Communications, Volume: 10, Issue: 1

Swansea University Authors: Jenny Baker Orcid Logo, Trystan Watson Orcid Logo

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DOI (Published version): 10.1038/s41467-019-10124-0

Abstract

Metal-halide perovskites have been widely investigated in the photovoltaic sector due to their promising optoelectronic properties and inexpensive fabrication techniques based on solution processing. Here we report the development of inorganic CsPbBr3-based photoanodes for direct photoelectrochemica...

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Published in: Nature Communications
ISSN: 2041-1723 2041-1723
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa50291
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spelling 2021-01-15T10:29:05.4180627 v2 50291 2019-05-09 Graphite-protected CsPbBr3 perovskite photoanodes functionalised with water oxidation catalyst for oxygen evolution in water 6913b56f36f0c8cd34d8c9040d2df460 0000-0003-3530-1957 Jenny Baker Jenny Baker true false a210327b52472cfe8df9b8108d661457 0000-0002-8015-1436 Trystan Watson Trystan Watson true false 2019-05-09 MECH Metal-halide perovskites have been widely investigated in the photovoltaic sector due to their promising optoelectronic properties and inexpensive fabrication techniques based on solution processing. Here we report the development of inorganic CsPbBr3-based photoanodes for direct photoelectrochemical oxygen evolution from aqueous electrolytes. We use a commercial thermal graphite sheet and a mesoporous carbon scaffold to encapsulate CsPbBr3 as an inexpensive and efficient protection strategy. We achieve a record stability of 30 h in aqueous electrolyte under constant simulated solar illumination, with currents above 2 mA cm−2 at 1.23 VRHE. We further demonstrate the versatility of our approach by grafting a molecular Ir-based water oxidation catalyst on the electrolyte-facing surface of the sealing graphite sheet, which cathodically shifts the onset potential of the composite photoanode due to accelerated charge transfer. These results suggest an efficient route to develop stable halide perovskite based electrodes for photoelectrochemical solar fuel generation. Journal Article Nature Communications 10 1 2041-1723 2041-1723 8 5 2019 2019-05-08 10.1038/s41467-019-10124-0 http://dx.doi.org/10.1038/s41467-019-10124-0 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University 2021-01-15T10:29:05.4180627 2019-05-09T10:34:27.8101854 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Isabella Poli 1 Ulrich Hintermair 2 Miriam Regue 3 Santosh Kumar 4 Emma V. Sackville 5 Jenny Baker 0000-0003-3530-1957 6 Trystan Watson 0000-0002-8015-1436 7 Salvador Eslava 8 Petra J. Cameron 9 0050291-09052019103659.pdf poli2019.pdf 2019-05-09T10:36:59.4930000 Output 5385063 application/pdf Version of Record true 2019-05-09T00:00:00.0000000 Distributed under the terms of a Creative Commons Attribution (CC-BY-4.0) true eng
title Graphite-protected CsPbBr3 perovskite photoanodes functionalised with water oxidation catalyst for oxygen evolution in water
spellingShingle Graphite-protected CsPbBr3 perovskite photoanodes functionalised with water oxidation catalyst for oxygen evolution in water
Jenny Baker
Trystan Watson
title_short Graphite-protected CsPbBr3 perovskite photoanodes functionalised with water oxidation catalyst for oxygen evolution in water
title_full Graphite-protected CsPbBr3 perovskite photoanodes functionalised with water oxidation catalyst for oxygen evolution in water
title_fullStr Graphite-protected CsPbBr3 perovskite photoanodes functionalised with water oxidation catalyst for oxygen evolution in water
title_full_unstemmed Graphite-protected CsPbBr3 perovskite photoanodes functionalised with water oxidation catalyst for oxygen evolution in water
title_sort Graphite-protected CsPbBr3 perovskite photoanodes functionalised with water oxidation catalyst for oxygen evolution in water
author_id_str_mv 6913b56f36f0c8cd34d8c9040d2df460
a210327b52472cfe8df9b8108d661457
author_id_fullname_str_mv 6913b56f36f0c8cd34d8c9040d2df460_***_Jenny Baker
a210327b52472cfe8df9b8108d661457_***_Trystan Watson
author Jenny Baker
Trystan Watson
author2 Isabella Poli
Ulrich Hintermair
Miriam Regue
Santosh Kumar
Emma V. Sackville
Jenny Baker
Trystan Watson
Salvador Eslava
Petra J. Cameron
format Journal article
container_title Nature Communications
container_volume 10
container_issue 1
publishDate 2019
institution Swansea University
issn 2041-1723
2041-1723
doi_str_mv 10.1038/s41467-019-10124-0
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
url http://dx.doi.org/10.1038/s41467-019-10124-0
document_store_str 1
active_str 0
description Metal-halide perovskites have been widely investigated in the photovoltaic sector due to their promising optoelectronic properties and inexpensive fabrication techniques based on solution processing. Here we report the development of inorganic CsPbBr3-based photoanodes for direct photoelectrochemical oxygen evolution from aqueous electrolytes. We use a commercial thermal graphite sheet and a mesoporous carbon scaffold to encapsulate CsPbBr3 as an inexpensive and efficient protection strategy. We achieve a record stability of 30 h in aqueous electrolyte under constant simulated solar illumination, with currents above 2 mA cm−2 at 1.23 VRHE. We further demonstrate the versatility of our approach by grafting a molecular Ir-based water oxidation catalyst on the electrolyte-facing surface of the sealing graphite sheet, which cathodically shifts the onset potential of the composite photoanode due to accelerated charge transfer. These results suggest an efficient route to develop stable halide perovskite based electrodes for photoelectrochemical solar fuel generation.
published_date 2019-05-08T04:01:41Z
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